Oil burner



Sept. 20, 1927.

E. A. FIELD ET AL 01; BURNER Filed Dec. 14. 1925 2 Sheets-Sheet 1 INI/ENTOR a y/97 m B Y 7 W0! 10 5 A TTORNEYJ Sept. 20, 1927. 1,643,115

E. A. FIELD ET AL OIL BURNER Filed Dec. 14. 1925 2 Sheets-Sheet 2 Patented Sept. 20, 19 27.

, UNITED STAT ES PATENT OFF-ICE; j

EDWARD A. FIELD AND EDWARD A.'FIELD, JR., OF CHICAGO, ILLINOIS.'

OIL summit.

epplication' filed December 14, 1925. Serial No. 75,327.

The main objects of this invention are:

First,.to provide an improved oil burner adapted for burning distillates, keroseneand other fuel oils which is highly efficient.

Second, to provide an improved burner of the class described which is well adapted for use in furnace boilers, cooking stoves and the like, it being capable of being easily embodied in various ways according to the particular installation or use required.

Third, to provide an improved oil burner embodying these advantages which is very simple and. economical in structure and at the same time very durable. I

Fourth, to provide an improved oil burner having no driven partsand one that does not require a fan for supplying air.

Objects pertaining to details and econo- 'mies of construction and operation of the invention will definitely appear from the detailed description to follow. The invention is clearly defined and pointed out in the claims. I

A. structure embodying the features of the invention is clearly illustrated in the accompanying drawing forming a part of this application, in which Fig. 1 is a perspective view of one of the improved burners, the manner of installing the same in a boiler being illustratedand the boilerbeing conventionally shown by dotted lines. t

Fig. 2 is a plan view of our improved burner.

Fig. 3 is a side elevation thereof, the fuel supply, overflow pipes and adjusting rod being broken away.

Fig. 4; is a detail view partiallyin vertical section on a line corresponding to hne H of Figs. 2 and 3, the burner being shown with the parts adjusted to starting'position.

Fig. v5 is a detail section correspondingto that of Fig. 4 with the burner adjusted to normal or runningposition.

Fig. 6 is a plan view with the adjustable air passage members removed.

Fig. 7 is an inside perspective view of one of the air passage members. I

Fig.8 is a detail vertical section on a line corresponding to line 88 of Fig. 5 showing details of the air passage member adjusting means.

Referring to the drawing, our improved burner comprises a case or body 1 of general rectangular form'which is open at the top and bottom. Disposed centrally within the casing and preferably formed therewith as part of an integral casing is a generating chamber member 2 having a fuel trough 3 at the bottom thereof. .This trough is disposed centrally of the generating chamber. At each side of the trough 3 are channels 4 for the wick 5, this wick being of asbestos or other heat resisting material.

The side walls 6 of the-generating chamberi are disposed in spaced relation to the side walls 7 of the casing providing air passages 8 at the sides of the generating chamber. These passages are closed at the top by the air passage members 9 which have longitudinal grooves 10 in their under sides engaging the upperedges of the wall 7 so that these passage members are tiltingly supported upon the walls. These passage members have depending skirt portions 11 which depend Within the generating chamber forming return or down draft air passages '12 when the passage members are in the open or normal position as shown in Fig. 5.

When the airpassage members are closed or adjusted to the position shown in Fig. 4:-

they rest upon the upper edges of the walls 6 thereby closing the passages 8 and also exposing the wicks 5 within the generating chamber. These passage members form the mouth of the generating chamber, the flow of air and the miXeda-ir or vapor and gases being indicated by dotted lines in Fig. 5.

The combustion takes place as the combustible gases issue from this mouth.

In use these passage members become heated and, being quiteheavy castings, serve to 'pre-heat the air as it is carried downward in the passages 12 and also aid in vaporizing and mixing of the air and fuel. I

The trough 3 is preferably filled with an oil distributing material indicated at 13, coarse sand having proved satisfactory for this purpose. However, asbestos'wool and other fire resisting materials may be satisfactorily used in this relation.

Thefuel pipe 14 has a nozzle or tip 15' delivering centrally into the trough 3. A 7

cap 16 placed loosely over the end of the nozzle prevents the material 13 falling into the nozzle.

At one end of the casing is an overflow trough 17 for the fuel trough, the return pipe 18leadingfrom this overflow. In practice the overflow is operatively associated with the feed valve so that in the event of the burner becomingextinguished the flow iii lit!

of fuel is stopped. Devices for this purpose are known in the art and as this forms no part of the present invention it is not illust'ated herein.

in the embodiment illustrated the air passage members 9 are simultaneously' adjusted by means oi" the ca n1 19 carried by the sleeve 20 mounted. on the fuel supply pipe ll. this sleeve is provided with a lever 91 which is adjustablv seem-ed by means oi the set screw Q32 so that" th adjusting rod 2?) may be arranged as the particular installation renders most desirable.

hilounted upon this sleeve 20 is a yoke the arms 2% oi? whieh are ronneetial by the linlts ill") to the slotted ears 26 on the members 9. This yoke has lugs 27 engaging the am. Rotation of the r-TlOGYQ from the operative or normal position shown in Fig. 5 to the position shown in Fig. l: allows these lugs to drop into the recesses of the cam. thus allowing the passage men'ibers to swing or tilt:

to the position shown in Fig. -l-.

in starting the burner the parts are adjusted to the position shown in Fig. t; and the fuel. turned on until the trough ove timvs. Sati'irating the wieks which are then lighted and permitted to burn until the parts hecome sutlieientlv heated to generate the "apor. The members 9 are then adjusted to the position shown in Fig. 5. the air flows upwardly through the passages it and downwardh through the passa; ,s lit into close proximity with the tuel feed means deseribed. and the vapors of the fuel are entirely mixed with this air which beeoines heated.

In the embodiment illustrated the members 9 have end walls 29 which overlap the end walls 30 of the passages 8. these end walls 30 being reed from the end walls 31 ot' the easing to provide the trough 17. The end wall 32 oil the easing: also constitutes an end wall tor these assaeies ti.

The lugs 83 on the passage members 5) engage over the end walls 32 oi the easimr taup portinn' the parts and permitting their tilting: adpistment without the necessity for pivots. The links are arranged through openings E26 provided in the side walls of the raising, thereb scouring a substantially direet pull on the adjusting yoke.

In installing the burner in a lirepota. it is prete abl v supported by lee-s Ell.- which are adjustablv threaded into bosses 35 on the easing. thus permitting the leveling of the burner. The easing is prov ded with tlaml'es 36 adapted to support the plate -37 which is of sueh size as to tit within the tire pot. the tire pot being); tilled in around this plate with sand indicated at 38, thereby providing" an approximatel airtight closure around the burner, the air flowing through the burner and eompelling all the air for eombustion to pass through the burner.

The heating of the air by the burner induees the proper flow of air so that it is unnecessary to provide tans or blowers for forcing the air thereto. We thus avoid the anno anee incident to a. motor and the expense ot maintaining; the same and the n1ovable parts.

tlur improved burner is ver eeonomi-al to produce and at the same time is highly etlieient. We have illustrated and described our impro'veinents in an embodiment which we have found very 1) anti ral. li o have not attempted to show various modilieations and :nlaptations as we believe the disclosure made will enable those skilled in th art to embody or adapt the same as may be. desired.

Having thus deseribed our invention what; we vlaim as new and desire to secure by Let.- ters Patent is:

l. The. combination in a burner. oi an elongggated easing open at the top and. bot tom. a. generating); chamber open at the top and having a eentrall disposed fuel trough at the bottom thereof and ivielc channels at the. sides of the fuel trough. said generation; chamber being disposed eentrally and longi tudinallv oi the easing and in spa ed relat on to its side walls providing an air inlet passa e at the side? of the pgeneratirm rhamher, said fuel trough rontainimr "fuel distributiir; material ant said \\'i(l{ ehannels being provided with \vielts, there being an oven llow trough at one end of said Fuel trough and wiel: channels, air passage members liltahly mounted on, the upper edges of the easl said air paiimg side walls to overuanp; and depending within said generating ehann ber providing return air pawl-auger; delivering; iuproxiniitr to said t'uel trougglnsaid passage members beingadapted to rest on the generating; ehamber walls when in one llUr-Illittll thereby elosinn the air passages and exposing the wicks within the mining chamber. a vow tieallv disposed :tuel teed. pipe tor said iiuel trough. a sleeve rotatably mounted on said. pipe and. provided with a dtnrnwzn'dly ital. inn ram. a yoke slidable on said s eeve be low said eam to be actuated thereby. and links eonneeting: the arms of said voice, to said passage members.

2. The eon'ibination in a burner. of an elongated easingopen at the top and bottom. a. treneratine' chamber open at the top and having a eentrallv disposed fuel trough at: the bottioi'n thereof and ivieh channels at the sides ot the "fuel trough, said generating ehamber beingdisposed c ntrally and loneltudinallv of the fusing; and in spaced relation to its side walls proi-idine; an air inlet; passage at:- the sides oi the gene ut'ingl' chamher. there being an overflow trough at onev end of said fuel trough and wiel; channels. air passage members tiltably mounted on the upper edges of the casing side walls to -l'- bane said ai passage. and depending within. said generating chamber providing return till 'airpassages delivering in proximity to said fuel trough, said passage members being arms of said yoke to said passagemembers.

3. The combination in a burner, of an elongated casingopen at the top and bottom, a generating chamber open at the top and having a centrally disposed fuel trough at a, the bottom thereof and wick channelsat the sides of the fuel trough, said generating chamber being disposed centrally and longitudinally of the casing and in spaced relationto its sidewalls aroviding an air inlet passage at the sides 0 --the generating chamber, said fuel trough containing fuel distributing material and said wick channels being provided with wicks, there being an overflow trough at one end of said fuel trough and wick channels, and air passage members tiltably mounted on theupper edges of the casingside walls to overhang said air passage and depending within said generating chamber providing return air passages delivering in proximity to said "fuel trough, said passage members being adapted to rest on the generating chamber walls'when in one position thereby closing the air passages and exposing the wicks withinthe mixing chamber.

4-. The combination ina burner, of an elongated casing open at the top and bottom, a generating chamber open at the top and having a centrally disposed fuel trough at the bottom thereof and 'wick channels at the sides of the fuel trough, said generating chamber being disposed centrally and longitudinally of the casing and in spaced relation to its side walls providing an air .inlet passage at the sides of the generating chamher, and air passagemembers tiltably mount-- ed on the upper edgesfofthe casing side walls to overhang said air passage and depending within said generating chamber providing return air passages delivering in proximity to said fuel trough, said passage members'being adapted to rest on the generating chamber walls when in one position thereby closing the air passages.

The combination in a burner, of a casing open at the top and bottom, a generating chamber within said casing open at the top and having a fuel trough at the bottom thereof and wick channels at the sides of the trough, there being air inlet passages at the sides of the generating chamber, said fuel trough containing a fuel distributing material and said wick channels being provided withwicks, airpassage members adjustably mounted on said casing walls to overhang said air passage and depending within said generating chamber providing when open return air passages delivering in proximity to said fuel trough, said passage members bein adapted to rest' on the generating chamber walls when in one position thereby closing the air passages and exposing the wicks within the mixing chamber, a vertically disposed fuel pipe forsaid fuel trough, a cam rotatably mounted onsaid pipe, and a. yoke operatively associated with saidcam and connected to said passage members.

6. The combination in a burner of a-casing open at the top" and bottom, a generating chamber within said casing open at the top and having a fuel trough at the bottom thereof, there being air inlet passages at the sides of the generating chamber, air passage members adjustably mounted on said casing walls to overhang said air passage and depending within said generating chamber providing when open return air passages delivering in proximity to said fuel trough, said passage members being adapted to rest on the generating chamber walls when in one position thereby closing the air passages, a vertically disposed fuel pipe for said fuel trough, a cam rotatably mounted on said pipe, and a yoke operatively associated with said cam and connected to said passage members.

7. The combination in a burner of a casing open at the top and bottom, a generating chamber within said casing open at the top and having a fuel trough at the bottom thereof and wick channels at the sides of the trough, there being air inlet passages at the sides of the generating chamber, said fuel trough containing a fuel distributing material and said wick channels-being provided withwicks, and air passage members adjustably mounted on said casing walls to overhangsaid air passage and depending within said generating chamber providing when open return air passages delivering in proximity to said fueltrough, said passage members'being adapted to reston the generating chamber wallswhen in one position thereby closing the air passages and exposing the wicks within the mixing chamber.

8. The combination in a burner of a casing open at the top and bottom, a. generating chamber within said casing open at the top and having a fuel trough at the bottom thereof, there being vertical air inlet passages at the sides of the generating chamber, and air passage members adjustably mounted on said casing walls to constitute top walls of said air passages and depending within said generating chamber providing when closing the air passages.

' .baid air 9. The combination in a hurner, oi a easing' open at the top and hotton1. a generating; ehaniher having a fuel trough at the bottom thereof, and wie: rhanneis at the Sikh?! of the trough said generating -hainher heinp; disposed within said (raring providing air iniet pawages at The sides of the ehanihein said 'iuei trough eontainiug a tool iii:-;i'l'iiutingr material and iaiid wiri: ehannels heing provided with wieha. and air paenag'e menihera entering the upper ends of ii-iaid air passagea and depending n'iihii raid mixing chamber providing: reiurn air paasageie deiivering into proximity to mid 't'uei trough paaaagge ineniiior-i being; adjuatahiy mounted to Lii'He aid air paesagg ea and to expose the wicks within said generating ehaniiher.

10. The eoniiiiiuation in a hurner, oi a ear-e .ing or en at the top and hottoni, a generating ehaniher having a fuel trough at the bottom thereof, ea id generating ehainher being di$1- posed eentraitv within said easing pltiiidiilg vertical air iniet paeea ihe eidew of the .i 1 chamber, and angh a r i )11#:1f,0 niemhers pivotaiiy mounted on said 1;); to eorer said ai 1 1.: :11pm and de pend within said generating rhaniirer providingiflreturn air paeaagee deiix'eriug into proximity to said 't'uei trough.

11. The eoinhii'iatioi'i in a hurner, oi a ea '2 ing Open at the top and bottom, a generatin ehaniher having a teed means at the hottoin thereot, said geneaitinp' ehaniher being (iif h posed eentr: ii within s aid wining to provide verliea air inlet paeaages at the ehainher and angled air PEISSHQB liltllliitlri pirotaily mounted on said caning; to cover the upper ends oi said air passenger; and depend within raid generating ehanlher proriding a mouth for the hurner and return air passages delivering" into proximity to said fuel i'eed means, said air passage ineinhers being adjustahi mounted to eiose said air passages.

12. The combination in a burner, ot a eas in; open at the top and iJOtt'Ull'l a generating chamber having a teed means at the bottom theupper ends of thereof saidgenerating ehaniher he ng dis posed centrally within 1 id casing to provide vertical air inlet passages at the sides of the chamber, and angled air passage llltilliJOl'S piretaiiy mounied on said caning to eover the upper ends 071? said air paaea ge. and depend within said generating ehaniher providing: a rrouth for the hurner and return air paraagis deiirering into p1'());i]liit;\ t0 said 'iue i'eed means:

1 The eonihination in a huruer, of a mixing chamber having eentraii (iiZ'iPUSQtt i'uei. trough at the bottom thereof and Wiei-i Li121!li1{ i:- at the rides; oi the trough said tuei trough eontaining a "fuel dir-itrii'iuting mate riai and said wiei: ehanueh: being provided with wieks, there being an overflow tor said i'uei trough and wiei; ehanneis, air pane go inenihera mounted to depend Within said geiienting rhaniher in epaeed relation to earh orher providing a mouth for tne burner and with their lower (Hitler; adjaeeut the top oi the irougirh and enacting with the using \rtihi providing air )11.- s a ;ee deliiering downwardii' adjacent the fuel trough said members being tiitingiy adjustabie to clone raid paeaages and to axpoae the wicks within the generating chamber, and a iiuei teed pipe detirering eentraily to said trough.

"he eonihination in a burner, of a ehaiuher having; a fuel feed means at bottom thereof, Wieha disposed at the a de: of the trough, and air pas: e menihen: mounted to depend within said generat Eng: chamber in spaced reiation to each other providing; a month for the humor with their iower edges ai'ijaeent the top oi? the trough and eoaeting; with the wining waiia pro iding air paeieages deiirering; ihiwnwariiihr adjacent the fuel trough, aaid ]1lt11li)Oti-l being tiitingiy adjustable to close said passages and to expose the wiehs within the generating: chamber.

In witness whereot' we have hereunto our hands.

in: the

EDXVARD A. FIELD. EDWVARD A. FIELD, J11. 

